... , 3W stereo loud speaker, TF card slot; FM radio,Polymer battery Hot! unique digital mp3 player with loud speaker and TF card slotFunction 1. OLED ... : 512MB~16GB for TF card Optional Colors Black,pink, red, blue, green Optional FM: Philip 5767 Battery model: Polymer battery Playing time ... User manual USB cable Packing type: Crystal box Hot! unique digital mp3 player with loud speaker and TF card slot